Okihisa was the third son of Amako Tsunehisa and was at first called Genshirô. He was named the head of the Enya family and later distinguished himself in battle. However, he was displeased with a grant of land he received from his father and at length rebelled over the matter in 1532. When his revolt made no progress, he fled Izumo province and then committed suicide.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005